fix: upgrade multiple dependencies with Snyk

Snyk has created this PR to upgrade:
  - react from 16.4.1 to 16.14.0.
    See this package in npm: https://www.npmjs.com/package/react
  - react-dom from 16.4.1 to 16.14.0.
    See this package in npm: https://www.npmjs.com/package/react-dom

See this project in Snyk:
https://app.snyk.io/org/jswheeler/project/ad1d2fb3-6446-40e6-ab1d-ef7911607d0a?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -21,9 +21,9 @@
     "node-forge": "^0.7.5",
     "prop-types": "^15.6.2",
     "raf": "^3.4.0",
-    "react": "^16.4.1",
+    "react": "^16.14.0",
     "react-css-super-themr": "^2.2.0",
-    "react-dom": "^16.4.1",
+    "react-dom": "^16.14.0",
     "react-helmet": "^5.2.0",
     "react-redux": "^5.0.7",
     "react-router-dom": "^4.3.1",